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Getting Drupal and mod_security to Play Nicely Together on Red Hat 5.x Servers

Nov 04, 2010, 12:35 (0 Talkback[s])
(Other stories by Caitlyn Martin)

[ Thanks to Caitlyn Martin for this link. ]

"Deploying Drupal on an Apache web server with mod_security or adding mod_security to an Apache server with Drupal running should be as easy as installing the relevant packages. Unfortunately, on Red Hat Enterprise Linux (RHEL) 5.4 and 5.5 servers it just isn't so. This is due to a combination of a bug and an outdated Core Rule Set (CRS) in the current mod_security package in the EPEL (Extra Packages for Enterprise Linux) repository. I've seen lots of posts online where people were struggling with this combination so I decided a how-to article was in order.

"The problems are entirely in the mod_security package. I've written this from the perspective of having Apache and Drupal already running and adding mod_security, which is how I did it on four web servers recently. However, the order in which you install things really shouldn't matter. I am also assuming that most readers will have already added EPEL to their sources for yum or at least be aware of how to do that. These instructions will also work on other Linux distributions which are binary compatible with RHEL including CentOS and Scientific Linux."

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